When three or more women lay side by side facing the same direction on a bed with their heads overhanging the edge. The women will keep their mouths open while the man stands in front of them walking back and forth ejaculating into their mouths. The Dutch version where this orginated substituted urine for the semen.

Dude, I went home with those three chicks last night.
Friend, What happened?
Dude, I spent all night feeding the birds!